<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>css_test</title>
    <link href="./css/main.css" type="text/css" rel="stylesheet" />
    <style>
        /* .hello {
            color: red;
        } */
    </style>
</head>
<body>
<div class="main">
    <p>==== 选择器 ====</p>
    <h1>我是大标题</h1>
    <div id="myDiv">我是区域标签 divcsacsaddcadscsad</div>
    <a href="http:www.baidu.com" class="myA">百度</a>
    <input type="text" /><br />
    <input type="password" />
    <p>==== 样式导入方式 ====</p>
    <span class="hello" style="font-size: 18px">hello World!</span>
</div>
</body>
</html>